/// <summary>
/// 转换为ISO8601规范的日期字符串 默认格式YYYYMMDD
/// </summary>
/// <returns>返回ISO8601规范的日期字符串</returns>
public override string ToString()
{
Int32 no = (Int32)Format;
switch (Format)
{
case ISO8601DateFormats.BasicCalendarDate:
return(String.Format(MyRegularExpressions[no][2], Value.Year, Value.Month, Value.Day));
case ISO8601DateFormats.ExtendedCalendarDate:
return(String.Format(MyRegularExpressions[no][2], Value.Year, Value.Month, Value.Day));
case ISO8601DateFormats.BasicOrdinalDate:
return(String.Format(MyRegularExpressions[no][2], Value.Year, Value.DayOfYear));
case ISO8601DateFormats.ExtendedOrdinalDate:
return(String.Format(MyRegularExpressions[no][2], Value.Year, Value.DayOfYear));
case ISO8601DateFormats.BasicWeekDate:
return(String.Format(MyRegularExpressions[no][2], Value.Year, ISO8601DateTimeHelper.GetWeekOfYear(Value), ISO8601DateTimeHelper.GetDayOfWeek(Value.DayOfWeek)));
case ISO8601DateFormats.ExtendedWeekDate:
return(String.Format(MyRegularExpressions[no][2], Value.Year, ISO8601DateTimeHelper.GetWeekOfYear(Value), ISO8601DateTimeHelper.GetDayOfWeek(Value.DayOfWeek)));
default:
return("");
}
}
/// <summary>
/// Regular.Match Group 2 DateTime
/// </summary>
/// <param name="m">Regular.Match</param>
/// <param name="format">ISO8601DateFormats</param>
/// <returns>return DateTime</returns>
internal static DateTime Match2DateTime(Match m, ISO8601DateFormats format)
{
DateTime datetime = default(DateTime);
switch (format)
{
case ISO8601DateFormats.BasicCalendarDate:
case ISO8601DateFormats.ExtendedCalendarDate:
datetime = new DateTime(Convert.ToInt32(m.Groups["year"].Value), Convert.ToInt32(m.Groups["month"].Value), Convert.ToInt32(m.Groups["day"].Value));
break;
case ISO8601DateFormats.BasicOrdinalDate:
case ISO8601DateFormats.ExtendedOrdinalDate:
datetime = new DateTime(Convert.ToInt32(m.Groups["year"].Value), 1, 1);
datetime = datetime.AddDays(Convert.ToInt32(m.Groups["dayofyear"].Value) - 1);
break;
case ISO8601DateFormats.BasicWeekDate:
case ISO8601DateFormats.ExtendedWeekDate:
datetime = new DateTime(Convert.ToInt32(m.Groups["year"].Value), 1, 1);
Int32 dayofyear = ISO8601DateTimeHelper.GetDayOfYearByWeek(Convert.ToInt32(m.Groups["year"].Value), Convert.ToInt32(m.Groups["weekofyear"].Value), Convert.ToInt32(m.Groups["dayofweek"].Value));
datetime = datetime.AddDays(dayofyear - 1);
break;
default:
break;
}
return(datetime);
}
